SICK STEGMANN ATM 90 SSI Montageanleitung Seite 7

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Zero-point adjustment*
ATM 90 Encoders feature electronic zero-
point adjustment.
The zero point can be adjusted in 2 ways:
• By pressing the button (9) located under
the PG cap (10) on the back of the housing
• Via a SET line, which can be operated by
the control system
* The set value can be freely programmed
using a programming tool.
Issue 08 / 03 The right to make technical changes is reserved
•
Absolute Encoder
ATM 90 SSI
Zero-point adjustment using the button
Switch on the voltage. Move the drive shaft,
with the Encoder already mounted, to the
mechanical zero position. Remove the PG
cap (10). Press the button (9) with a suitable,
blunt and non-conducting object for at least
40 ms.
Since the position value alters rapidly during
activation of the zero-point adjustment, ensu-
re that the drive shaft cannot move during
activation..
Refit the PG cap (10).
Zero-point adjustment using the SET line
Switch on the voltage. Move the drive shaft,
with the Encoder already mounted, to the
mechanical zero position. Apply a level of
0.7*Us...Us, to the SET line, for at least
40 ms.
Since the position value alters rapidly during
activation of the zero-point adjustment, ensu-
re that the drive shaft cannot move during
activation.
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